Automatically-working steam trap



G. MASSIP.

'AUTOMATICA'LLY WORKING smm TRAP.

APPLICATION FILED MAR. 23. 1920.

1,406,747. Patented Feb.14, 1922.

muumm Ir J' V 3' h ww W M mum ZNVENTOR GEORGES M vented from escaping.

PATENT OFFICE.

GEORGES MASSIP, OF PARIS, FRANCE.

AUTOMATICALLY-WORKING STEAM TRAP.

Specification of Letters Patent. Pate t d F b 14 1922 Apphcation filed March 23, 1920. SeriaiNo. 368,154,.

To all whom it may concern Be it known that I, Gnonons MAssir, a citizen of the French Republic, and resident of Paris, France, have invented certain new and useful Improvements in Automatically- W-orking Steam Traps, (for which I have filed application in France Mar. 15, 1919,) of which the following is a specification.

The present invention relates to anautomatic steam trap which may be applied to steam pipes, cylinders of steam engines, superheaters, and the like devices and comprising a slidable block provided with peripherical tightening grooves inserted-within a suitable chamber or housing, in order to secure an efiicient separating of water from the steam and a simultaneous flowing oil of the water.

In the accompanying drawing I have shown by way of example two different constructive forms, based on the principle of the invention, of my automatic steam trap:

Fig. 1 illustrates an axial section through a steam trap with a conical block;

Fig. 2 shows a similar section of a steam trap with a cylindrical block.

In Figure 1 the trap is formed by means of a hollow conical housing a connected by means of a flange b with the device to be purged. A wire gauze or the like 0 is inserted within the connecting duct.

Within the housing a is located a block or key 6 provided with a threaded rod f operated by a hand wheel or the like g. Rod f is screwed on the cover 72. of housing a, whereby the position of key (Z within the housing may be adjusted.

The end portion 2' of key 6 is provided with apertures j establishing a communication between the interior of the housing a and the device to be purged. A tube 70 is pro.- vided for evacuating the condensed water.

The mixture of steam and water entering the housing a through the apertures j and flowing towards the evacuating duct 70, is throttled in the successive grooves e forming a labyrinth joint in which the water is separated from the steam, the steam being pre- The water accumulates on the bottom of the housing a and flows off through the duct 70.

By operating the hand wheel 9, key 01 is axially displaced within the housing a, whereby not only the entrance and the circulating of the steam into housing a but also .the degree of saturation of the steam in the may be regulated.

In the constructive form shown in Fig. 2,

the housing a and likewise the key (Z, is of cylindrical shape. The latter, is provided with a threaded operating rod f and with hand wheel 9. Rod it ends in a valve needle m provided with grooves 11. which put in communication the housing a with theboiler or thelike, through the small duct 0. Owing to such arrangement, the position of the key d, slidable within the housing a, regulates the quantity of entering steam, as it regulates the section of passage 0 through which enters the steam.

V The constructive form shown in Fig. 1 is the preferred form, for high pressures, the other constructive form shown in Fig. 2 is preferable for low pressures.

In operation the water of condensation and steam enter through the bore j in the projection i as shown in Fig. 1 to the chamber containing the body 6 having the grooves. The water adheres to the body in these grooves and tends to prevent the flow of steam past the body and as an excess of water collects it gradually runs off through the outlet 71:. The heat in the water and steam is absorbed by the body which causes it to expand and gives it an axial movement, one end being stationary in the'cap it causes the whole movement to be imparted to the other end which moves the projection through the bearing opening and closes the bore j against the flow oi steam. In this way the expansion and contraction of the body will allow the water of condensation to flow out through the casing and at the same time prevent the escape of live steam, the water in the grooves of the body preventing the escape of steam until the body expands suiiiciently to close the port j.

The same action occurs in the form shown in Fig; 2, the expansion of the body causing the end of the projection to close the duct 0.

Having now fully described my said in vention, what I claim and desire to secure by Letters Patent, is:

1. A steam'trap, comprising a cylindrical housing having a bearing opening in one end and a removable cover at the other end, a body formed with annular grooves having a projection at one end seating in the bearing opening, and a threaded projection at the other end having threaded engagement in an opening in the cover, the body having its periphery spaced from the Wall of the housing and iormed with a bore in the progeetlon forming an inlet for the passage of fluid andthe housing being provided with an outlet at the opposite end.

2. A steam trap, comprising a cylindrical housing having a hearing opening in one end, a cover at the other end and an outlet 1 opening adjacent the cover a body axially and rotatably mounted in the housing having a projection from one end extending through the hearing opening and provided with a bore for the inlet of fluid, the other 

